class_docstr: A currency identifier, as defined by ISO-4217.
  
  Parameters
  ----------
  code : str
      ISO-4217 code for the currency.
  
  Attributes
  ----------
  code : str
      ISO-4217 currency code for the currency, e.g., 'USD'.
  name : str
      Plain english name for the currency, e.g., 'US Dollar'.
docstr: ISO-4217 currency code for the currency.
  
  Returns
  -------
  code : str
docstr_tok: ["ISO-4217","currency","code","for","the","currency",".","Returns","--","--","--","-","code",":","str"]
code: def code(self):
      """ISO-4217 currency code for the currency.
  
      Returns
      -------
      code : str
      """
      return self._code
  
file_path: zipline/zipline/currency.py
imports: from functools import total_ordering
  from iso4217 import Currency
label_desc: Use image node_id 2 for calling the Currency obj's underlying member method code with example usage: obj.code() and returns: self